Home / 211,159.77-291,400.55-115,669.90

Finding the Fourth Proportional to 211,159.77, 291,400.55 and 115,669.90

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Solution

The fourth proportional to 211,159.77, 291,400.55 and 115,669.90 is: 159,624.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,159.77 : 291,400.55 = 115,669.90 : x
  2. Step 2: Convert to fraction form
    211,159.77/291,400.55 = 115,669.90/x
  3. Step 3: Cross multiply
    211,159.77x = 291,400.55 × 115,669.90
  4. Step 4: Simplify right side
    211,159.77x = 33,706,272,478.45
  5. Step 5: Solve for x
    x = 33,706,272,478.45/211,159.77
  6. Step 6: Final answer
    x = 159,624.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.